Answer:
78.54
Step-by-step explanation:
first you have to divided 31.4 by 3.14 to get your diameter so you can get your radius. 31.4 divided by 3.14 equals 10 and 10 divided by 2 equals 5 which is you radius. The formula for area for a circle is πr². 5 squared is 25 and 3.14 times 25 equals 78 .54 which is your answer.
Answer:
60%
Step-by-step explanation:
add them all to 20
add 7 and 5 to get 12
12 over 20 is 60 percent
Answer:
the 2nd one is the answer :)
Answer:
43.96m is the answer
Step-by-step explanation:
circumference of circle=2πr
=2*3.14*7
=43.96m
Answer:
1.1 ,-9.1
Step-by-step explanation:
